US20100031712A1 - Collapsible Container with Locking Device - Google Patents
Collapsible Container with Locking Device Download PDFInfo
- Publication number
- US20100031712A1 US20100031712A1 US12/186,928 US18692808A US2010031712A1 US 20100031712 A1 US20100031712 A1 US 20100031712A1 US 18692808 A US18692808 A US 18692808A US 2010031712 A1 US2010031712 A1 US 2010031712A1
- Authority
- US
- United States
- Prior art keywords
- spring lock
- lock insert
- spring
- side wall
- pivotable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010276 construction Methods 0.000 claims description 4
- 238000013461 design Methods 0.000 description 4
- 238000012790 confirmation Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D11/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
- B65D11/18—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material collapsible, i.e. with walls hinged together or detachably connected
- B65D11/1833—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material collapsible, i.e. with walls hinged together or detachably connected whereby all side walls are hingedly connected to the base panel
- B65D11/184—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material collapsible, i.e. with walls hinged together or detachably connected whereby all side walls are hingedly connected to the base panel and one or more side walls being foldable along a median line
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/50—Special application
- Y10T70/5009—For portable articles
- Y10T70/5031—Receptacle
Definitions
- the invention relates to a collapsible container and, more particularly, to a collapsible container including a locking device that releasably secures at least one of the side walls in an upright, opened position.
- Collapsible plastic containers are used in a variety of industrial and commercial applications. These containers offer the convenience of large holding capacity and, when collapsed, a minimum space requirement for storage. Exemplary collapsible plastic containers are described in commonly-owned U.S. Pat. No. 5,038,953 and U.S. Pat. No. 7,370,771, the disclosures of which are incorporated by reference.
- top perimeter and bottom accept the attachment of sidewalls that are hinged to allow the entire assembly to be folded.
- longer sides are constructed with two parts hinged in the middle and attached to both the top perimeter and bottom.
- the shorter sides or end walls are attached to the top perimeter or bottom and fold inward to collapse the container.
- the design according to the described embodiments incorporates a spring-locking device preferably located in the end panel that engages the main frame of the container when the container is erected.
- the locking device is preferably of a one-piece design with spring characteristics and is easily installed in the panel. The locking device secures the panel in its full vertical position and is easily released when desired to enable the container to be collapsed.
- a collapsible container in an exemplary embodiment, includes a main frame; a bottom wall; and a plurality of side walls, where at least one of the plurality of side walls is pivotable between a collapsed position and an opened position.
- the pivotable side wall includes at least one spring lock insert secured in a slot in the pivotable side wall and biased toward a lock position in which a lock portion of the spring lock insert extends beyond an end edge of the pivotable side wall.
- the main frame comprises at least one latch opening corresponding to the at least one spring lock insert. The latch opening receives the spring lock insert when the pivotable side wall is in the opened position.
- the lock portion of the spring lock insert preferably includes an angled surface facing the main frame such that the spring lock insert is displaced away from the lock position by engagement of the angled surface with the main frame until the pivotable side wall is pivoted to the opened position.
- the spring lock insert is formed in a one-piece integrated construction.
- the spring lock insert is provided with a finger grip that is sized to receive a human finger.
- the spring lock insert may include a pair of spring extensions disposed at an angle relative to a bias direction of the spring lock insert, where a width of the slot in the pivotable side wall is smaller than a width span of the spring extensions.
- the spring extensions are preferably deflectable inward to enable the spring lock insert to be displaced downward away from the lock position.
- the pivotable side wall may also include a release channel disposed adjacent the slot.
- the release channel houses the spring lock insert and includes sufficient space to enable the spring lock insert to be displaced from the lock position.
- the plurality of side walls comprises two lateral walls and two end walls, where the end walls are pivotable between the collapsed position and the opened position.
- each of the end walls may include two spring lock inserts secured in corresponding slots therein, where the main frame includes a latch opening for each of the spring lock inserts.
- a collapsible container in another exemplary embodiment, includes a main frame; a bottom wall; and a plurality of side walls including a pair of lateral walls and a pair of end walls, where the end walls are pivotable between a collapsed position and an opened position.
- Each of the end walls includes at least one spring lock insert secured in a slot therein that is biased toward a lock position in which a lock portion of the spring lock insert extends beyond an end edge of the end wall.
- the main frame includes a latch opening corresponding to each of the at least one spring lock insert. The latch opening receives the spring lock insert when the pivotable side wall is in the opened position.
- FIG. 1 is an end perspective view of the container in an assembled or opened position
- FIG. 2 is a partial perspective view showing an end panel between a collapsed position and an opened position
- FIG. 3 is an exterior view of an end panel including a pair of spring lock inserts
- FIG. 4 shows a pair of latch openings in the main frame that accepts the spring lock inserts when the panel is in its full vertical position
- FIG. 5 is a perspective view of a spring lock insert.
- a collapsible container 10 is movable from a collapsed position to an opened position.
- the generally conventional elements of the container 10 include an open top frame or top perimeter 12 , a bottom panel 14 , two ends or end panels 15 and two sides 16 .
- Each of the sides is composed of first and second panels 17 , 18 that are pivotably connected together at a center portion of the sides 16 as shown.
- the first panels 17 are pivotably connected to the top frame 12
- the second panels 18 are pivotably connected to the bottom 14 so that the first and second panels pivot with respect to each other and the top frame and bottom about parallel axes.
- the pivotable end walls 15 are pivotably connected to the bottom 14 via a hinge or other suitable connection.
- Each of the end walls 15 is preferably provided with at least one spring lock insert 20 secured in a slot 22 in the end wall 15 and biased toward a lock position in which a lock portion 24 of the spring lock insert 20 extends beyond an edge of the end wall 15 (see FIG. 3 ).
- the top frame 12 is provided with a latch opening 26 ( FIG. 4 ) for each of the spring lock inserts 20 that receives the lock portion 24 of the spring lock inserts 20 when the end wall 15 is in its opened position.
- the spring lock inserts 20 fully engage the frame when the end panel 15 is in its full vertical position.
- a small opening 40 ( FIG. 1 ) in the outside of the frame 12 can be used to allow visual confirmation that the end panel is fully engaged.
- a small opening in the outside of the end panel 15 can also be used to allow visual confirmation that the spring lock insert 20 is present.
- the lock portion 24 of the spring lock insert 20 preferably includes an angled surface 28 facing the top frame 12 such that the spring lock insert 20 is displaced away from the lock position by engagement of the angled surface 28 with the top frame 12 until the end wall 15 is pivoted to its opened (vertical) position.
- the spring lock insert 20 is preferably formed in a one-piece integrated construction.
- the spring lock insert 20 includes a finger grip 30 that is sized to receive a human finger (which could also be accomplished with a different shape, for example, a tab protruding up) and facilitates release of the spring lock insert 20 .
- the spring lock insert 20 also includes a pair of spring extensions 32 disposed at an angle relative to a bias direction of the spring lock insert 20 (see arrow A in FIG. 1 ).
- a width of the slot 22 in the end wall 15 is smaller than a width span of the spring extensions 32 .
- the end wall 15 includes a release channel 34 disposed adjacent the slot 22 .
- the release channel 34 houses the spring lock insert 20 and includes sufficient space to enable the spring lock insert to be displaced from its lock position.
- the spring extensions 32 are deflectable inward to enable the spring lock insert 20 to be displaced within the release channel 34 via the finger grip 30 away from the lock position (downward in FIG. 1 ).
- the spring lock inserts 20 are displaced in the release channel 34 on the inside of the container (downward in FIG. 1 ). With the spring lock inserts 20 released, the end panel 15 can be moved toward its horizontal position, and the container can be collapsed.
- the container 10 may be constructed such that the side panels 16 include the spring lock inserts instead of or in addition to the end panels 15 .
- the end panels 15 are shown pivoting on the bottom 14 into the top frame 12 , the end panels 15 could alternatively pivot from the top frame 12 into suitable structure in the bottom panel 14 .
- the spring lock could also be located in the frame 12 and engage the end panel 15 .
- a secure engagement of the end panel to the frame can be achieved that positively holds the end panel in place when the container is erected.
- a smooth, flat top edge of the end panel with a chamfered edge allows for easy and smooth automated container set up. Since the spring lock inserts can only be disengaged from the inside of the erected container, the end panel cannot be pushed in when the containers are stacked and/or lidded. This provides a very high level of security when the stacked or lidded containers are strapped or banded. Still further, the design allows the container to accept a variety of different lids while still providing the security necessary to protect the contacts from pilferage.
- the spring lock inserts allow for a non-violent, user-friendly way for the user to disengage the end panel from the frame and collapse the container when it is empty.
- the container design allows it to be used and is interchangeable with other similar containers and lids available in the market.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
Abstract
Description
- (NOT APPLICABLE)
- (NOT APPLICABLE)
- The invention relates to a collapsible container and, more particularly, to a collapsible container including a locking device that releasably secures at least one of the side walls in an upright, opened position.
- Collapsible plastic containers are used in a variety of industrial and commercial applications. These containers offer the convenience of large holding capacity and, when collapsed, a minimum space requirement for storage. Exemplary collapsible plastic containers are described in commonly-owned U.S. Pat. No. 5,038,953 and U.S. Pat. No. 7,370,771, the disclosures of which are incorporated by reference.
- Existing collapsible containers typically operate in a similar manner. A top perimeter and bottom accept the attachment of sidewalls that are hinged to allow the entire assembly to be folded. Generally, the longer sides are constructed with two parts hinged in the middle and attached to both the top perimeter and bottom. The shorter sides or end walls are attached to the top perimeter or bottom and fold inward to collapse the container.
- In most containers of this type, the side attached to a single component is secured in position only by a ramp or bump, past which its moving end passes as it swings into final position. This function may be accomplished in a similar fashion via cantilevered snaps. Other containers use an additional part to provide a sliding latch. It is important to positively retain these sides in their fully erect position to ensure that the container can bear the weight of containers that may be stacked on top of it.
- The design according to the described embodiments incorporates a spring-locking device preferably located in the end panel that engages the main frame of the container when the container is erected. The locking device is preferably of a one-piece design with spring characteristics and is easily installed in the panel. The locking device secures the panel in its full vertical position and is easily released when desired to enable the container to be collapsed.
- In an exemplary embodiment, a collapsible container includes a main frame; a bottom wall; and a plurality of side walls, where at least one of the plurality of side walls is pivotable between a collapsed position and an opened position. The pivotable side wall includes at least one spring lock insert secured in a slot in the pivotable side wall and biased toward a lock position in which a lock portion of the spring lock insert extends beyond an end edge of the pivotable side wall. The main frame comprises at least one latch opening corresponding to the at least one spring lock insert. The latch opening receives the spring lock insert when the pivotable side wall is in the opened position.
- The lock portion of the spring lock insert preferably includes an angled surface facing the main frame such that the spring lock insert is displaced away from the lock position by engagement of the angled surface with the main frame until the pivotable side wall is pivoted to the opened position.
- In one arrangement, the spring lock insert is formed in a one-piece integrated construction. Preferably, the spring lock insert is provided with a finger grip that is sized to receive a human finger.
- The spring lock insert may include a pair of spring extensions disposed at an angle relative to a bias direction of the spring lock insert, where a width of the slot in the pivotable side wall is smaller than a width span of the spring extensions. In this context, the spring extensions are preferably deflectable inward to enable the spring lock insert to be displaced downward away from the lock position.
- The pivotable side wall may also include a release channel disposed adjacent the slot. The release channel houses the spring lock insert and includes sufficient space to enable the spring lock insert to be displaced from the lock position.
- Preferably, the plurality of side walls comprises two lateral walls and two end walls, where the end walls are pivotable between the collapsed position and the opened position. Moreover, each of the end walls may include two spring lock inserts secured in corresponding slots therein, where the main frame includes a latch opening for each of the spring lock inserts.
- In another exemplary embodiment, a collapsible container includes a main frame; a bottom wall; and a plurality of side walls including a pair of lateral walls and a pair of end walls, where the end walls are pivotable between a collapsed position and an opened position. Each of the end walls includes at least one spring lock insert secured in a slot therein that is biased toward a lock position in which a lock portion of the spring lock insert extends beyond an end edge of the end wall. The main frame includes a latch opening corresponding to each of the at least one spring lock insert. The latch opening receives the spring lock insert when the pivotable side wall is in the opened position.
- These and other aspects and advantages will be described in detail with reference to the accompanying drawings, in which:
-
FIG. 1 is an end perspective view of the container in an assembled or opened position; -
FIG. 2 is a partial perspective view showing an end panel between a collapsed position and an opened position; -
FIG. 3 is an exterior view of an end panel including a pair of spring lock inserts; -
FIG. 4 shows a pair of latch openings in the main frame that accepts the spring lock inserts when the panel is in its full vertical position; and -
FIG. 5 is a perspective view of a spring lock insert. - With reference to
FIG. 1 , acollapsible container 10 is movable from a collapsed position to an opened position. The generally conventional elements of thecontainer 10 include an open top frame ortop perimeter 12, abottom panel 14, two ends orend panels 15 and twosides 16. Each of the sides is composed of first andsecond panels sides 16 as shown. Thefirst panels 17 are pivotably connected to thetop frame 12, and thesecond panels 18 are pivotably connected to thebottom 14 so that the first and second panels pivot with respect to each other and the top frame and bottom about parallel axes. - With reference to
FIG. 2 , thepivotable end walls 15 are pivotably connected to thebottom 14 via a hinge or other suitable connection. Each of theend walls 15 is preferably provided with at least one spring lock insert 20 secured in aslot 22 in theend wall 15 and biased toward a lock position in which alock portion 24 of the spring lock insert 20 extends beyond an edge of the end wall 15 (seeFIG. 3 ). Thetop frame 12 is provided with a latch opening 26 (FIG. 4 ) for each of thespring lock inserts 20 that receives thelock portion 24 of the spring lock inserts 20 when theend wall 15 is in its opened position. Thespring lock inserts 20 fully engage the frame when theend panel 15 is in its full vertical position. A small opening 40 (FIG. 1 ) in the outside of theframe 12 can be used to allow visual confirmation that the end panel is fully engaged. A small opening in the outside of theend panel 15 can also be used to allow visual confirmation that thespring lock insert 20 is present. - With reference to
FIG. 5 , thelock portion 24 of the spring lock insert 20 preferably includes anangled surface 28 facing thetop frame 12 such that thespring lock insert 20 is displaced away from the lock position by engagement of theangled surface 28 with thetop frame 12 until theend wall 15 is pivoted to its opened (vertical) position. As shown inFIG. 5 , thespring lock insert 20 is preferably formed in a one-piece integrated construction. Thespring lock insert 20 includes afinger grip 30 that is sized to receive a human finger (which could also be accomplished with a different shape, for example, a tab protruding up) and facilitates release of the spring lock insert 20. Thespring lock insert 20 also includes a pair ofspring extensions 32 disposed at an angle relative to a bias direction of the spring lock insert 20 (see arrow A inFIG. 1 ). A width of theslot 22 in theend wall 15 is smaller than a width span of thespring extensions 32. With continued reference toFIG. 1 , theend wall 15 includes arelease channel 34 disposed adjacent theslot 22. Therelease channel 34 houses the spring lock insert 20 and includes sufficient space to enable the spring lock insert to be displaced from its lock position. Thespring extensions 32 are deflectable inward to enable thespring lock insert 20 to be displaced within therelease channel 34 via thefinger grip 30 away from the lock position (downward inFIG. 1 ). - With reference to
FIG. 2 , when the container is being opened from its collapsed position, as theend panel 15 begins to engage thetop frame 12, theangled surface 28 of thelock portion 24 makes contact with theframe 12 and is pushed away from the locked position (downward inFIG. 1 ) under tension into theend panel 15. As theend panel 15 continues to move into its full vertical position, it reaches an area under theframe 12 that contains the latch opening 26 to accept thelock portion 24 of thespring lock insert 20. At this time, the tension placed on thespring lock insert 20 via thespring extensions 32 urges thelock portions 24 into thelatch openings 26, thereby securely locking theend panel 15 into theframe 12. To disengage theend panel 15 from theframe 12, the spring lock inserts 20 are displaced in therelease channel 34 on the inside of the container (downward inFIG. 1 ). With the spring lock inserts 20 released, theend panel 15 can be moved toward its horizontal position, and the container can be collapsed. - It will be appreciated by those of ordinary skill in the art that a suitable locking function could be obtained with only a single
spring lock insert 20 in theend panel 15. Additionally, thecontainer 10 may be constructed such that theside panels 16 include the spring lock inserts instead of or in addition to theend panels 15. Moreover, although theend panels 15 are shown pivoting on the bottom 14 into thetop frame 12, theend panels 15 could alternatively pivot from thetop frame 12 into suitable structure in thebottom panel 14. The spring lock could also be located in theframe 12 and engage theend panel 15. - With the container constructed according to the described embodiments, a secure engagement of the end panel to the frame can be achieved that positively holds the end panel in place when the container is erected. Additionally, a smooth, flat top edge of the end panel with a chamfered edge allows for easy and smooth automated container set up. Since the spring lock inserts can only be disengaged from the inside of the erected container, the end panel cannot be pushed in when the containers are stacked and/or lidded. This provides a very high level of security when the stacked or lidded containers are strapped or banded. Still further, the design allows the container to accept a variety of different lids while still providing the security necessary to protect the contacts from pilferage. The spring lock inserts allow for a non-violent, user-friendly way for the user to disengage the end panel from the frame and collapse the container when it is empty. The container design allows it to be used and is interchangeable with other similar containers and lids available in the market.
- While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not to be limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US12/186,928 US8348076B2 (en) | 2008-08-06 | 2008-08-06 | Collapsible container with locking device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/186,928 US8348076B2 (en) | 2008-08-06 | 2008-08-06 | Collapsible container with locking device |
Publications (2)
Publication Number | Publication Date |
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US20100031712A1 true US20100031712A1 (en) | 2010-02-11 |
US8348076B2 US8348076B2 (en) | 2013-01-08 |
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US12/186,928 Active 2030-09-04 US8348076B2 (en) | 2008-08-06 | 2008-08-06 | Collapsible container with locking device |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130049311A1 (en) * | 2011-08-31 | 2013-02-28 | Carl Metters | Wheeled Personal Grocery Basket and Cart System |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103569448B (en) * | 2012-08-08 | 2016-01-13 | 康准电子科技(昆山)有限公司 | Containing case |
US11352168B2 (en) | 2015-06-22 | 2022-06-07 | U.S. Merchants Financial Group, Inc. | Collapsible crate |
US10065763B2 (en) | 2016-09-15 | 2018-09-04 | Arena Packaging, Llc | Wall latching system |
US11208236B2 (en) | 2018-04-20 | 2021-12-28 | Orbis Corporation | Nestable and stackable straight wall tote with expandable and collapsible bottom structure |
US11618610B2 (en) | 2020-09-24 | 2023-04-04 | Creative Plastic Concepts, Llc | Bin with flip lid |
US11731803B2 (en) | 2021-07-02 | 2023-08-22 | The Merchant Of Tennis, Inc. | Collapsible crate with stowable hinged lid |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3724889A (en) * | 1971-10-12 | 1973-04-03 | Gen Electric | Latching device |
US4798304A (en) * | 1987-10-08 | 1989-01-17 | Monoflo International, Inc. | Collapsible box |
US5038953A (en) * | 1987-10-08 | 1991-08-13 | Monoflo International, Inc. | Collapsible box |
US5205595A (en) * | 1991-05-13 | 1993-04-27 | Svehaug Oswald C | Lock mechanism |
US6868979B2 (en) * | 2003-05-08 | 2005-03-22 | Monoflo International, Inc. | Collapsible plastic container with locking feature |
-
2008
- 2008-08-06 US US12/186,928 patent/US8348076B2/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3724889A (en) * | 1971-10-12 | 1973-04-03 | Gen Electric | Latching device |
US4798304A (en) * | 1987-10-08 | 1989-01-17 | Monoflo International, Inc. | Collapsible box |
US5038953A (en) * | 1987-10-08 | 1991-08-13 | Monoflo International, Inc. | Collapsible box |
US5205595A (en) * | 1991-05-13 | 1993-04-27 | Svehaug Oswald C | Lock mechanism |
US6868979B2 (en) * | 2003-05-08 | 2005-03-22 | Monoflo International, Inc. | Collapsible plastic container with locking feature |
US7370771B2 (en) * | 2003-05-08 | 2008-05-13 | Monoflo International, Inc. | Collapsible plastic container with locking feature |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130049311A1 (en) * | 2011-08-31 | 2013-02-28 | Carl Metters | Wheeled Personal Grocery Basket and Cart System |
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US8348076B2 (en) | 2013-01-08 |
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